{"entity":{"id":"idea-prev-cgm-glycaemic-drift-pancreas","kind":"idea","name":"Glucose monitor data as an early pancreatic cancer signal","aka":[],"tldr":"Millions now wear continuous glucose monitors. A sudden, unexplained worsening of glucose control in a middle-aged wearer could be flagged as a possible early sign of pancreatic cancer.","summary":"Pancreatic cancer causes new or worsening diabetes one to three years before diagnosis. Continuous glucose monitor streams give a far finer signal of glycaemic drift than sporadic HbA1c. Propose a retrospective study linking CGM data to pancreatic cancer outcomes to define a drift signature, then a prospective alert routing flagged users to ENDPAC-style work-up.","asOf":"2026-09-08","links":[{"label":"Bottleneck evidence (The hardest cancers are found late): Crosby et al., Early detection of cancer (Science 2022)","url":"https://doi.org/10.1126/science.aay9040"}],"tags":[],"related":[],"cancers":["pancreatic"],"sections":["early-detection"],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":["b-early-detection"],"keyPapers":["paper-crosby-science"],"journals":[],"dependsOn":[],"notes":[],"hypothesis":"A CGM-derived glycaemic drift signature identifies incident pancreatic cancer with a positive predictive value of at least 2% in wearers over 50, enough to justify imaging.","rationale":"The biology is established; the sensor data is new and continuous; the population is large and, on many platforms, already consented for research use.","test":"Start with retrospective linkage in a large CGM database with cancer registry outcomes (small cost); then run a prospective alert pilot.","maturity":"speculative","actor":"data","cost":"small","horizonYears":4},"route":"/ideas/idea-prev-cgm-glycaemic-drift-pancreas/","neighbours":{"cancer":[{"id":"ipmn-cystic-precursors","kind":"cancer","name":"Intraductal papillary mucinous neoplasm and other pancreatic cystic precursors","route":"/cancers/ipmn-cystic-precursors/"},{"id":"pancreatic","kind":"cancer","name":"Pancreatic ductal adenocarcinoma","route":"/cancers/pancreatic/"}],"section":[{"id":"early-detection","kind":"section","name":"Early Detection & Screening","route":"/fronts/early-detection/"}],"bottleneck":[{"id":"b-early-detection","kind":"bottleneck","name":"The hardest cancers are found late","route":"/bottlenecks/b-early-detection/"}],"paper":[{"id":"paper-crosby-science","kind":"paper","name":"Early detection of cancer","route":"/key-papers/paper-crosby-science/"}]}}